<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>1</title>
    <script type="text/javascript">
    function wc()
    {
        document.write("这是JS的无参函数");
    }
    wc();
    </script>
</head>
<body>
    
</body>
</html>